About the Authors
Department of Microbiology, Immunology, and Molecular Genetics, University of California, Los Angeles, Los Angeles, California, United States of America
Institute for Cell and Molecular Biosciences, Newcastle University, Newcastle upon Tyne, United Kingdom
The authors have declared that no competing interests exist.
Conceived and designed the experiments: ASB RPH PJJ. Performed the experiments: ASB RPH. Analyzed the data: ASB RPH PJJ. Contributed reagents/materials/analysis tools: RPH. Wrote the paper: ASB RPH PJJ.